Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Black Dial - 331.10.42.51.01.001 platinum Rolex calibre 4130 self-winding movement

Rolex calibre 4130 self-winding movement with chronograph central second hand

18K yellow gold fluted crown with a synthetic spinel cabochon

44 mm stainless steel case with helium escape valve

10 diamond hour markers

25 mm sedna gold case

Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Black Dial - 331.10.42.51.01.001 platinum Rolex calibre 4130 self-winding movement41. 5 mm stainless steel case, transparent back, brushed bezel with with tachymeter scale, scratch resistant sapphire crystal with anti reflective treatment on both sides, black dial, self winding chronometer Omega 9300 movement with Co Axial Escapement, chronograph, date, and small seconds, approximately 60 hours of power reserve, stainless steel bracelet. Water resistant to 100 m.